laravel trim string blade

1{{Str::limit($category->name, 20)}}
2
3if to end 
4  
5{{Str::limit($category->name, 20, $end='.......')}}
6             
7or
8  
9{{\Illuminate\Support\Str::limit($category->name, 20)}}            

1#at AppServiceProvider
2
3Blade::directive('trim', function ($string) {
4            $string = urldecode($string);
5            $string = trim($string);
6            return "<?php echo $string; ?>";
7        });
8
9#And use on Blade template
10
11@trim('Hello world !')

1{{ \Illuminate\Support\Str::limit($productVal, 20, $end='...') }}